PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8458Valve,pressure,anti-G Suit

Essex Industries, Inc. Dba Essex Industries · NSN 1660-00-433-3391 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-433-3391 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-433-3391. Primary manufacturer part number: 8458.
Features
  • Valve,pressure,anti-G Suit — FSC 1660
  • General Characteristics Item Description: TOGGLE VALVE FOR MAIN POPPET ASSEMBLY
  • 1 verified cross-reference
  • Primary manufacturer: Essex Industries, Inc. Dba Essex Industries
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,pressure,anti-G Suit, cataloged under National Stock Number 1660-00-433-3391, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Essex Industries, Inc. Dba Essex Industries. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-433-3391
Primary Part Number8458
Item NameValve,pressure,anti-G Suit
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerEssex Industries, Inc. Dba Essex Industries
StatusACTIVE
General Characteristics Item DescriptionTOGGLE VALVE FOR MAIN POPPET ASSEMBLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5815-00-125-33918458 INTERCHANGEABLE
Bar
Telemechanics Inc
6145-00-128-22608458 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire and Cable Co Wire and Cable Office
5960-00-284-6399 INTERCHANGEABLE
Electron Tube
5930-00-981-89298458 INTERCHANGEABLE
Switch,rotary
Shallco, Inc
5950-01-200-9356722899-4 INTERCHANGEABLE
Transformer,power
Raytheon Company Div Rmd Strategic
6730-01-515-70258458 INTERCHANGEABLE
Booth,viewing
Just Normlicht Inc
7025-01-610-22168458 INTERCHANGEABLE
Disk Drive Unit
Tandberg Data Corporation
Cross-Reference Index
Part NumberManufacturer
8458 PRIMARY Essex Industries, Inc. Dba Essex Industries (USA)
Related Parts
5815-00-125-3391INTERCHANGEABLE
BAR
8458
6145-00-128-2260INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8458
5960-00-284-6399INTERCHANGEABLE
ELECTRON TUBE
5930-00-981-8929INTERCHANGEABLE
SWITCH,ROTARY
8458
5950-01-200-9356INTERCHANGEABLE
TRANSFORMER,POWER
722899-4
6730-01-515-7025INTERCHANGEABLE
BOOTH,VIEWING
8458
7025-01-610-2216INTERCHANGEABLE
DISK DRIVE UNIT
8458

Frequently Asked Questions

What is NSN 1660-00-433-3391?

NSN 1660-00-433-3391 is a Valve,pressure,anti-G Suit, manufactured by Essex Industries, Inc. Dba Essex Industries, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-433-3391?

NSN 1660-00-433-3391 has 1 cross-referenced part number: 8458 (Essex Industries, Inc. Dba Essex Industries).

What NSN replaces 1660-00-433-3391?

There are 7 known substitutes for 1660-00-433-3391: 5815-00-125-3391, 6145-00-128-2260, 5960-00-284-6399 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8458?

Key specifications for 8458: General Characteristics Item Description: TOGGLE VALVE FOR MAIN POPPET ASSEMBLY. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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